i'm looking for a way to fit my tattoos on mesh body avatar an to do on only one arm / hand too

[Lindal Kidd]

Get the Developers Kit from the mesh body creator(s) you want to make tattoos for.  Some give them away for free, others charge a nominal amount.

The developers kit will include the assets and information you need to create textures and map them to the mesh body in an external modeling software like Blender, Maya, or LightWave, and create an applier to paint the texture on the mesh body in SL.

[Lindal Kidd]

Get the Developers Kit from the mesh body creator(s) you want to make tattoos for.  Some give them away for free, others charge a nominal amount.

The developers kit will include the assets and information you need to create textures and map them to the mesh body in an external modeling software like Blender, Maya, or LightWave, and create an applier to paint the texture on the mesh body in SL.